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267 lines
6.8 KiB
267 lines
6.8 KiB
/***************************************************************************
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Copyright (c) 1998 Microsoft Corporation
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Module Name:
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UTILS.H
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Abstract:
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Header file for routines that don't fit anywhere else.
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Environment:
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kernel mode only
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Notes:
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THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
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KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
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PURPOSE.
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Copyright (c) 1998 Microsoft Corporation. All Rights Reserved.
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Revision History:
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12/23/97 : created
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Authors:
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Tom Green
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****************************************************************************/
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#ifndef __UTILS_H__
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#define __UTILS_H__
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// state machine defines for restarting reads from completion routines
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#define START_READ 0x0001
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#define IMMEDIATE_READ 0x0002
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#define END_READ 0x0003
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//
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// State machine defines for LSRMST insertion
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//
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#define USBSER_ESCSTATE_DATA 1
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#define USBSER_ESCSTATE_NODATA 2
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#define USBSER_ESCSTATE_LINESTATUS 3
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NTSTATUS
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UsbSerGetRegistryKeyValue(IN HANDLE Handle, IN PWCHAR PKeyNameString,
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IN ULONG KeyNameStringLength, IN PVOID PData,
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IN ULONG DataLength);
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VOID
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UsbSerUndoExternalNaming(IN PDEVICE_EXTENSION PDevExt);
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NTSTATUS
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UsbSerDoExternalNaming(IN PDEVICE_EXTENSION PDevExt);
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NTSTATUS
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StartDevice(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp);
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NTSTATUS
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StopDevice(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp);
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NTSTATUS
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RemoveDevice(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp);
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NTSTATUS
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CreateDeviceObject(IN PDRIVER_OBJECT DriverObject,
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IN PDEVICE_OBJECT *DeviceObject,
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IN PCHAR DeviceName);
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VOID
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CompleteIO(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp,
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IN ULONG MajorFunction, IN PVOID IoBuffer,
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IN ULONG_PTR BufferLen);
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NTSTATUS
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DeleteObjectAndLink(IN PDEVICE_OBJECT DeviceObject);
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VOID
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StartPerfTimer(IN OUT PDEVICE_EXTENSION DeviceExtension);
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VOID
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StopPerfTimer(IN OUT PDEVICE_EXTENSION DeviceExtension,
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IN ULONG BytesXfered);
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ULONG
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BytesPerSecond(IN OUT PDEVICE_EXTENSION DeviceExtension);
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NTSTATUS
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CallUSBD(IN PDEVICE_OBJECT DeviceObject, IN PURB Urb);
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NTSTATUS
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CallUSBD_SyncCompletionRoutine(IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp,
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IN PVOID Context);
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NTSTATUS
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GetDeviceDescriptor(IN PDEVICE_OBJECT DeviceObject);
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NTSTATUS
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ConfigureDevice(IN PDEVICE_OBJECT DeviceObject);
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NTSTATUS
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SelectInterface(IN PDEVICE_OBJECT DeviceObject,
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IN PUSB_CONFIGURATION_DESCRIPTOR ConfigurationDescriptor);
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PURB
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BuildRequest(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp,
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IN USBD_PIPE_HANDLE PipeHandle, IN BOOLEAN Read);
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VOID
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BuildReadRequest(PURB Urb, PUCHAR Buffer, ULONG Length,
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IN USBD_PIPE_HANDLE PipeHandle, IN BOOLEAN Read);
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NTSTATUS
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ClassVendorCommand(IN PDEVICE_OBJECT DeviceObject, IN UCHAR Request,
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IN USHORT Value, IN USHORT Index, IN PVOID Buffer,
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IN OUT PULONG BufferLen, IN BOOLEAN Read, IN ULONG ComType);
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VOID
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CancelPendingWaitMasks(IN PDEVICE_EXTENSION DeviceExtension);
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VOID
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CancelPendingNotifyOrRead(IN PDEVICE_EXTENSION DeviceExtension,
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IN BOOLEAN Notify);
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VOID
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StartRead(IN PDEVICE_EXTENSION DeviceExtension);
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VOID
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RestartRead(IN PDEVICE_EXTENSION DeviceExtension);
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VOID
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StartNotifyRead(IN PDEVICE_EXTENSION DeviceExtension);
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VOID
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RestartNotifyRead(IN PDEVICE_EXTENSION DeviceExtension);
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NTSTATUS
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ReadCompletion(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp, IN PVOID Context);
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ULONG
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GetData(IN PDEVICE_EXTENSION DeviceExtension, IN PCHAR Buffer,
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IN ULONG BufferLen, IN OUT PULONG_PTR NewCount);
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VOID
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PutData(IN PDEVICE_EXTENSION DeviceExtension, IN ULONG BufferLen);
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VOID
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CheckForQueuedReads(IN PDEVICE_EXTENSION DeviceExtension);
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NTSTATUS
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UsbSerSyncCompletion(IN PDEVICE_OBJECT PDevObj, IN PIRP PIrp,
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IN PKEVENT PUsbSerSyncEvent);
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VOID
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UsbSerFetchBooleanLocked(PBOOLEAN PDest, BOOLEAN Src,
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PKSPIN_LOCK PSpinLock);
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VOID
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UsbSerFetchPVoidLocked(PVOID *PDest, PVOID Src, PKSPIN_LOCK PSpinLock);
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VOID
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UsbSerRundownIrpRefs(IN PIRP *PpCurrentOpIrp, IN PKTIMER IntervalTimer OPTIONAL,
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IN PKTIMER TotalTimer OPTIONAL,
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IN PDEVICE_EXTENSION PDevExt);
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VOID
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UsbSerGetNextIrp(IN PIRP *PpCurrentOpIrp, IN PLIST_ENTRY PQueueToProcess,
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OUT PIRP *PpNextIrp, IN BOOLEAN CompleteCurrent,
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IN PDEVICE_EXTENSION PDevExt);
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NTSTATUS
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UsbSerAbortPipes(IN PDEVICE_OBJECT PDevObj);
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VOID
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USBSER_RestartNotifyReadWorkItem(IN PDEVICE_OBJECT DeviceObject, IN PDEVICE_EXTENSION DeviceExtension);
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#if DBG
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PVOID
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UsbSerLockPagableCodeSection(PVOID SecFunc);
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#define UsbSerLockPagableSectionByHandle(_secHandle) \
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{ \
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MmLockPagableSectionByHandle((_secHandle)); \
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InterlockedIncrement(&PAGEUSBSER_Count); \
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}
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#define UsbSerUnlockPagableImageSection(_secHandle) \
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{ \
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InterlockedDecrement(&PAGEUSBSER_Count); \
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MmUnlockPagableImageSection(_secHandle); \
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}
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//
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// Use if code can be called non-locked at lower irql
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//
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#define USBSER_LOCKED_PAGED_CODE() \
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if ((KeGetCurrentIrql() > APC_LEVEL) \
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&& (PAGEUSBSER_Count == 0)) { \
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KdPrint(("USBSER: Pageable code called at IRQL %d without lock \n", \
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KeGetCurrentIrql())); \
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ASSERT(FALSE); \
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}
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//
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// Use if code must always be locked; e.g., the function grabs a spinlock
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//
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#define USBSER_ALWAYS_LOCKED_CODE() \
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if (PAGEUSBSER_Count == 0) { \
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KdPrint(("USBSER: Pagable code raises IRQL called without lock\n")); \
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ASSERT(FALSE); \
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}
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#define UsbSerAcquireSpinLock(_pLock, _pIrql) \
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{ \
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ASSERTMSG(PAGEUSBSER_Count, "USBSER: Acquire spinlock without paging lock\n")); \
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KeAcquireSpinLock((_pLock), (_pIrql)); \
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}
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#define UsbSerReleaseSpinLock(_pLock, Irql) \
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{ \
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ASSERTMSG(PAGEUSBSER_Count, "USBSER: Release spinlock and paging unlocked\n")); \
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KeReleaseSpinLock((_pLock), (_pIrql)); \
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}
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#else
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#define UsbSerLockPagableCodeSection(_secFunc) \
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MmLockPagableCodeSection((_secFunc))
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#define UsbSerLockPagableSectionByHandle(_secHandle) \
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{ \
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MmLockPagableSectionByHandle((_secHandle)); \
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}
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#define UsbSerUnlockPagableImageSection(_secHandle) \
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{ \
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MmUnlockPagableImageSection(_secHandle); \
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}
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#define USBSER_LOCKED_PAGED_CODE()
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#define USBSER_ALWAYS_LOCKED_CODE()
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#define UsbSerAcquireSpinLock(_pLock, _pIrql) \
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KeAcquireSpinLock((_pLock), (_pIrql))
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#define UsbSerReleaseSpinLock(_pLock, Irql) \
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KeReleaseSpinLock((_pLock), (_pIrql))
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#endif // DBG
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#endif // __UTILS_H__
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